New approach to oceanography research on elongated paths on principles of nonlinear acoustics

Esipov, I.B.

Автор: Esipov Igor B.
Сборник: Proceedings of the meetings on acoustics
Том: 24
Год издания: 2016
Издательство: Acoustical Society of America
Местоположение издательства: United States
Первая страница: 005005-1
Последняя страница: 005005-11
DOI: 10.1121/2.0000146
Аннотация: A power parametric array (PA) operating on principles of nonlinear acoustics for waveguide marine research of the main oceanographic features (current, temperature, salinity) in the frequency band of 300-3000 Hz has been developed. An extremely narrow directivity pattern (2° angular resolution) for broadband acoustical signal perfectly couples to single-mode waveguide excitation in the whole frequency band. Specific features of the PA signal's transmission give an opportunity to use the waveguide frequency dispersion for wide frequency-band signal compression during long-range propagation. Relative gain in signal intensity could be realized in the process of such compression at the virtual acoustics barriers in shallow-water. Therefore, nonlinear acoustics opens a new frequency-domain approach for underwater array application. The main objective of this paper is to discuss the primary advantages of such an underwater array, working on the principles of nonlinear acoustics for long-range oceanographic research. Demonstration of the new abilities provided by PA application for remote ocean sensing is expected to yield long-term benefits for practice of ocean acoustics research.
Добавил в систему: Есипов Игорь Борисович

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№	Имя	Описание	Имя файла	Размер	Добавлен
1.	Полный текст		POMA_PA_CRiuS8A.pdf	2,0 МБ	3 января 2019 [igor.esipov@mail.ru]
2.	Полный текст		POMA_PA.pdf	2,0 МБ	3 января 2019 [igor.esipov@mail.ru]

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